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Cheng-Ku Yu and Lin-Wen Cheng

b indicates that the mean RRT values for the SW (OR) typhoon calculated over the duration of the WSW flow was equal to approximately −0.75 (−0.35) at the lowest analysis level. The inflow angle derived from the mean RRT value was approximately 37° for the SW typhoon and approximately 19° for the OR typhoon. The calculated mean inflow angle of the SW typhoon was larger than the typical near-surface inflow angle of previously documented hurricanes over the open ocean (~23°; Powell et al. 2009

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Christopher Velden, Timothy Olander, Derrick Herndon, and James P. Kossin

1. Introduction Tropical cyclones (TCs) are well known for their occasional devastating impacts on human life and property, as well as ecological zones. Also known over various parts of the global tropics as hurricanes, typhoons and cyclones (for the remainder of this paper, they will all be referred to as TCs), TCs only rarely reach their full intensity potential. However, when they do, TCs represent simultaneously one of nature’s most wondrous accomplishments and formidable threats. The quest

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Gordon J. Bell and Tsui Kar-sing

74 JOURNAL OF APPLIED METEOROLOGY VO~-UMEI2Some Typhoon Soundings and Their Comparison with Soundings in Hurricanes GORDON J. BELL AND TSUr KAR-SmG Ro~l~ Observatory, H ong(M~uu~pt recdved 23 ~une 1972, in re~ fo~ 5 ~ptem~r 1972)ABSTRACT Over 100 radiosonde soundings made within 185 km of the centers of typhoons are averaged in S-robclasses of sea-level pressure (SLP). The mean

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Eric W. Uhlhorn, Bradley W. Klotz, Tomislava Vukicevic, Paul D. Reasor, and Robert F. Rogers

et al. 2003 ; Powell et al. 2003 ; Kepert, 2006a , b ; Schwendike and Kepert 2008 ), but spatial resolution limitations from the individual point measurements often prevent a detailed description of the full wind field in most cases ( Landsea et al. 2004 ). Recently, observations of the TC surface wind field have become available from stepped-frequency microwave radiometers (SFMRs; Uhlhorn et al. 2007 ), now installed on all operational and research hurricane reconnaissance aircraft flying in

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Yuan Jiang and Qin Xu

data are also sometimes rejected in areas where the true wind field becomes too nonuniform to satisfy the VAD uniform-wind approximation. This has limited the dealiased data coverage, as often seen from hurricane (or typhoon) winds scanned by operational radars. Because aliasing can occur in countless different ways and the aliasing scenarios can be extremely complex, it is very difficult or even impossible to develop a single dealiasing method for all different and difficult scenarios to satisfy

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Elizabeth A. Ritchie, Kimberly M. Wood, Oscar G. Rodríguez-Herrera, Miguel F. Piñeros, and J. Scott Tyo

, 27% are tropical storm intensity, 24% are typhoon intensity, and 2% are supertyphoon intensity. The eastern North Pacific study examines images with existing TCs from the 2005–11 hurricane seasons and comprises a total of 20 213 unique half-hourly images. The resulting dataset includes 21 major hurricanes, 25 hurricanes, and 44 tropical storms. The North Atlantic hurricane database (HURDAT) does not include systems that peaked below tropical storm (34 kt) intensity; thus, none of these cases was

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Jung Hoon Shin

the region of PBL inflow is almost in agreement with the positive RAF. Because of RAF, the low-level outer tangential flow of the hurricane accelerates in the inflow region (i.e., frontal convective region), which extends intense tangential wind to the downstream side of the frontal convection. As a result, a local wind maximum not only occurs within the frontal area but also extends outside of the frontal region. A similar pattern has also been seen in the observational study of Typhoon Sinlaku

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Guangxin He, Juanzhen Sun, and Zhuming Ying

adding information from different elevation angles and volume scans. Most of the algorithms are designed for a Nyquist velocity between 20 and 36 m s −1 but tend to fail for some typhoon and hurricane cases when multiple-aliased velocity observations appear. A series of algorithms ( Wang et al. 2012 ; Xu et al. 2014 ; Jiang and Xu 2016 ) were developed for aliased radar radial velocities obtained from a hurricane and a typhoon. The algorithms by Xu et al. (2014) and Jiang and Xu (2016) are

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T. D. Keenan and J. I. Templeton

320 MONTHLY WEATHER REVIEW VOLUM- 111A Comparison of Tropical Cyclone, Hurricane and Typhoon Mass and Moisture Structure T. D. KEENAN AND J. I. TEMPLETONSynoptic Research Section. Bureau of Meteorology. Melbourne. Victoria 3001..4ustralia(Manuscript received 10 March 1982, in final form 9 November 1982)ABSTRACT Radiosonde soundings obtained within 180 km of

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S. Yang, X. Zou, and P. S. Ray

MetOp-A and MetOp-B alleviates the significant reduction in COSMIC data because of the lack of reprocessed version 3 RO data during the typhoon and hurricane seasons of 2014 and 2015. Fig . 4. Annual variations in the number of TC cases in the TD (pink), TS (orange), and TY/HU (red) categories over (a) the western Pacific Ocean and (b) the Atlantic Ocean, as well as the number of RO profiles from COSMIC (black), MetOp-A (blue), and MetOp-B (green) from 2007 to 2015. The collocation criteria

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